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- Updated for December 2024
- Based on 2024 WA commercial driver's license manual
Free Washington CDL Combination Practice Test 2024
If you’re in Washington, check out this free CDL Combination practice test.
The Pacific Northwest is well-known for its mountainous terrain, dense forests, and unpredictable weather. During winter, snow and ice make it difficult for even the most experienced drivers to maintain control of their vehicles. While it offers stunning views, trucking in Washington can be challenging, requiring drivers to handle such precarious conditions.
If you want to drive heavy combination vehicles, you must obtain a Class A Commercial Driver’s License (CDL). Washington’s Department of Licensing (DOL) is responsible for issuing a CDL if you meet the basic requirements and pass a knowledge test at one of their offices. You will also need to pass the CDL skills test in a combination vehicle, which evaluates your ability to safely handle a truck in a closed course. Once a certified examiner is satisfied with your performance, you’ll proceed with a pre-trip inspection and a road test.
This lengthy process can be overwhelming even for the most prepared students, but it becomes easier when broken down into steps. First, you must learn the key aspects of commercial driving and combination vehicles. Make sure to memorize all the steps of your pre-trip inspection, which you should perform in the same way each time. If the truck you intend to drive has air brakes, you must also pass an Air Brakes knowledge test.
Our CDL Combination practice tests have 25 questions based on the official 2024 CDL manual (https://driving-tests.org/washington/wa-cdl-handbook/). They closely reflect the actual written exam, allowing students to become familiar with its content and format. The only notable difference is the lack of a timer, which removes the pressure of a countdown. You’ll need a score of 80% to pass, but it is perfectly normal to fail on your first attempts.
Use these tests as an educational tool while you are still in the learning phase. After each question, you will receive immediate feedback with a detailed explanation of the correct answer. This will not only help you identify mistakes and areas needing improvement, but you can also learn the correct answer on the spot without waiting until the test ends.
Additionally, you can use our detailed Combination test collection while actively practicing on our tests. Although this resource won’t be allowed during the official exam, it gives you a chance to associate the correct answers with their respective meaning.
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual WA DOL exam
questions
correct answers to pass
passing score
List of questions (classic view)
- After you lock the kingpin into the fifth wheel, how should you check the connection?
- After you connect the air lines but before you back under the trailer, you should
- Which statement best illustrates the "crack-the-whip" effect?
- When you inspect the landing gear after uncoupling the trailer, where should the tractor be?
- What is the safest way to turn right from a two-way road?
- To drive a triple combination vehicle, you must have
- To prevent a rollover, cargo should be
- Combination vehicles take longer to stop when they are empty than when they are fully loaded, because
- If your vehicle gets stuck on a railroad track, you should
- Low-slung vehicles can be risky at railroad crossings because
- On a double or triple vehicle, which wheels offtrack the most?
- When you're pulling doubles or triples, the shut-off valves should always be
- On a trailer, where is the yellow antilock brake (ABS) malfunction lamp located?
- Even before antilock braking systems (ABS) were required, some vehicles already had them. How can you check if your vehicle has ABS?
- An antilock braking system (ABS) is useful
- After coupling, make sure that the air lines are not crossed. How should you do this?
- During uncoupling, you should disconnect the electrical cable and
- Before you start to uncouple, you must
- You can confirm that air is going to all brakes in your trailers by
- To uncouple a loaded trailer, after the landing gear has made firm contact with the ground, you should
- If the trailer has antilock brakes (ABS) but the tractor doesn't,
- To test the tractor protection valve, charge the trailer air brake system, turn off the engine, and
- If your test of the tractor protection valve is successful,
- The tractor protection valve is designed to close automatically if the air pressure falls into the pressure range specified by the manufacturer, typically
- As part of your vehicle inspection test, if your vehicle is equipped with air brakes and has a trailer, you will inspect the air connections between the truck or tractor and the trailer. Make sure that the ________ are locked in place and free of damage or air leaks.
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